Release 4.14 arch/m68k/lib/ashrdi3.c

/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details. */

#include <linux/compiler.h>
#include <linux/export.h>


#define BITS_PER_UNIT 8


typedef		 int SItype	__mode(SI);

typedef unsigned int USItype	__mode(SI);

typedef		 int DItype	__mode(DI);

typedef int word_type           __mode(__word__);




struct DIstruct {SItype high, low;};

typedef union
{
  
struct DIstruct s;
  
DItype ll;

} DIunion;


DItype

__ashrdi3 (DItype u, word_type b)
{
  DIunion w;
  word_type bm;
  DIunion uu;

  if (b == 0)
    return u;

  uu.ll = u;

  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
  if (bm <= 0)
    {
      /* w.s.high = 1..1 or 0..0 */
      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
      w.s.low = uu.s.high >> -bm;
    }
  else
    {
      USItype carries = (USItype)uu.s.high << bm;
      w.s.high = uu.s.high >> b;
      w.s.low = ((USItype)uu.s.low >> b) | carries;
    }

  return w.ll;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
152
100.00%
1
100.00%
Total
152
100.00%
1
100.00%


EXPORT_SYMBOL(__ashrdi3);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
197
87.56%
1
25.00%
Gideon Israel Dsouza
16
7.11%
1
25.00%
Al Viro
11
4.89%
1
25.00%
Geert Uytterhoeven
1
0.44%
1
25.00%
Total
225
100.00%
4
100.00%
Directory: arch/m68k/lib

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